Voice Trainer vs 3T
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Voice Trainer
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The Voice trainer is originally developed for people with a poorly intelligible speech due to Parkinson's disease , but is also suitable for professional speakers and in consultation with a speech therapist for people with another voice or speech disorder. With one dot on the screen, the app provides real time visual feedback on both loudness and pitch of the voice, allowing to see directly which aspect should be adjusted. You can use the app to make it easier to independently practice your speaking technique, but also to check if you speak properly during conversation. Together with your speech therapist you determine the optimal loudness and pitch. In Parkinson's disease or parkinsonism the app is used during speech therapy with the Pitch Limiting Voice Treatment ( PLVT ) , the Dutch method to effectively treat intelligibility problems in Parkinson's patients. The Voice trainer is therefore also called PLVT app. For additional options, the ‘Voice trainer Supplement’ is available.
3T
This app offers healthcare professionals tools for managing decontamination events. It provides process guidance, digital traceability, and audit capabilities for logs, users, and devices on a cloud-based platform.
- Process guidance
- Digital traceability
- Audit tools
- Decontamination log management
- User and device tracking
- Cloud-based platform
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3T provides healthcare professionals with process guidance, digital traceability and audit tools for decontamination events. Record, manage and review decontamination logs, users and devices in one simple to use, cloud-based platform
Screenshots
Verdict
The clearest difference is price: 3T at Free against Voice Trainer's $8.99. 3T also leads on in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 4 months). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
3T is free to download; Voice Trainer costs $8.99 up front. Voice Trainer sells 1 one-off in-app purchase. 3T asks for nothing beyond the download.
Voice Trainer ships an update every 4 months, 3T every 6 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.
| Parameter | Voice Trainer | 3T |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15 — better | 15.6 |
| Further details — not scored | ||
| Size | 25 MB | 92 MB |
| Age rating | 17+ | 4+ |
| Developer | Universitair Medisch Centrum St Radboud | Tristel Solutions Ltd. |
In-app purchases
Voice Trainer
- Voice trainer Supplement$17.99
3T
No in-app purchases









